PID: 6695   TASK: ffff8c571108cf80  CPU: 3   COMMAND: "ll_ost_io00_000"
 #0 [ffffb84482b33688] machine_kexec at ffffffffa12850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb84482b336e0] __crash_kexec at ffffffffa143e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb84482b337a0] crash_kexec at ffffffffa143fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb84482b337b8] oops_end at ffffffffa1237cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb84482b337d8] no_context.cold.27 at ffffffffa12a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb84482b33830] __bad_area_nosemaphore at ffffffffa12a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb84482b33878] bad_area_nosemaphore at ffffffffa12a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb84482b33880] do_user_addr_fault at ffffffffa12a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb84482b338d0] __do_page_fault at ffffffffa12a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb84482b338f0] do_page_fault at ffffffffa12a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb84482b33920] page_fault at ffffffffa2200f8e
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 1236
    [exception RIP: arc_buf_size+32]
    RIP: ffffffffc0816e20  RSP: ffffb84482b339d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff8c5710a2ec78  RCX: 0000000000000006
    RDX: ffff8c572a86ec00  RSI: 00000000b0000202  RDI: ffff8c5603926ea0
    RBP: 0000000000000006   R8: 0000000000000001   R9: 0000000000000000
    R10: ffff8c57111e3480  R11: ffff8c5725fa5cf8  R12: ffff8c573544ec00
    R13: ffff8c5718420000  R14: ffff8c573544ec00  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb84482b339d0] osd_bufs_put at ffffffffc1f0cd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb84482b33a18] ofd_release_chunk_lnb at ffffffffc23c2652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb84482b33a40] ofd_commitrw_write at ffffffffc23af018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffb84482b33ae0] ofd_commitrw at ffffffffc23b657c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffb84482b33bb8] tgt_brw_write at ffffffffc171f54c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffb84482b33d78] tgt_handle_request0 at ffffffffc1717cf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffb84482b33da8] tgt_request_handle at ffffffffc1719995 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb84482b33e28] ptlrpc_server_handle_request at ffffffffc16119d3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb84482b33e90] ptlrpc_main at ffffffffc1614bf8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb84482b33f10] kthread at ffffffffa1357041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb84482b33f50] ret_from_fork at ffffffffa22001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330